Usage:
Halfway horizon (informal) in Brennan Basin Member of Duchesne River Formation (UT)
Informal. The rank or lithologic term should not be capitalized.
Geologic age:
Eocene
Type section, locality, area and/or origin of name:
Well exposed along Halfway Hollow, basin which drains that district in T. 4 and 5 S., R. 19 and 20 E., Uintah Co., eastern UT (Kay, 1934).
AAPG geologic province:
Uinta basin
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).